Hardly Sounds Thrifty

Exiting the local thrift shop, one passes under a sign inviting customers to "Come back tomorrow when another 4,000 new items will be put on sale."  This strikes me as geometrically implausible to say the least.  The store is already quite overflowing with stuff.  Sure, a fair amount of merchandise is sold every day, but enough to make space for 4,000 new items?  Every day?  Because if the amount of stuff added exceeds the amount of stuff sold by even a modest amount, the implications are unsettling.  You know those disaster movies about epidemic diseases?  There's always that scene in the miltary headquarters where a map of the world quickly turns red as the featured malady spreads exponentially.  I imagine something similar originating from the thrift shop.  Instead of deadly germs, though, the planet will find itself awash in second-hand purses and slightly-used copies of Joyce Carol Oates' We Were the Mulvaneys.  Time to change the defcon rating!